Fluid-controlled transmission mechanism



May 20, 1930. c. H. NORRLIN FLUID CONTROLLED TRANSMISSION MECHANfSM F iled Nov. 10, 1927 4 Sheecs-Sheet May 20, 1930. c. H. NORRLIN FLUID CONTROLLED TRANSMISSION MECHANISM Filed Nov. 10, 1927 4 Sheets-Sheet 1 2 Jwoqntoc May 20, 1930. ,c. H. NORRLIN 1,759,801

I FLUID CONTROLLED TRANSMISSION MECHANISM Filed Nov. 10, 192'"! 4 Sheets-Sheet 3 e V I I k v I/ May 20, 1930. c. H. NORRLIN FLUID CONTROLLED TRANSMISSION MECHANISM Filed Nov. 10, 1927 4 Sheets-Shqet 4f mists-May 2o," 193: r v

finiiiiiniii riii-A; 'rEiTiisY-I ivfiiiiii- "fl t ii-bbfi'inbiiii 1i;iimiisiiiissmiv'imoimms vi' T i ni iltiim elsi i eml i -,fi-. ud qon rol s is smis l ni mle hainsmr 5 st fith hv n on be ng-td 'PFQY simp lzitteflwioh relation to th'e former; t i furthep object is t provide fhy d ai iic -c0i1tr01ie&transmission mechanism in which ecceiitricziliy. mqi n'tecl cylinders. revgivs with rotors and -pi'sto'ns inths-sams diregti'on, and in high simple "means. shall ha provided fer COhEtZQHiBg Julie, fluid velocity SQ" as' to' cause figreater DI 168$"difi fllfilceiiil IBiEItiYQJSPGQd b tws t dr ng a d d 'i v ns aifbs 1 I Afuriher objectis-te so construct the meshfinisni that ;the same shall be; kept in bzilapc e and I distribiitigi oi uniform torqiisto ,the

f A fin sher} objectris to' ziiiisniir'i siiphinanimpthat flieiwo king fiuid shali bejheld .inxSl spei sidn ithin a chamber @ccntainii g cylindegy rqtprp and pistpn 5 certainanmuni; ofpressure a nd alfsb cfause j h liquid (pr fer ly o l).ztofsi ir iin fl alve and Workiiigparts a idithus; eye p air frdm being mixd with theqild iringopei aother, obj gets in w r iewfglf e I1 Wit ihe e a d invention; consists in 1 c qgai i o vs; 'fs at ur es- (ifconstruct on and combinations of parts as hereinafter-set 'cliuitisi I Z ,1 1 In the accompany ngdrawings;

forth n'd- Pointed gut. in ithe Figure 1' is. a plan: viewg gmd the co veivof Ethe outr Casing renwved jggmd 'portioii lof theiimer casing'brpken away; 7

I i, 3 Figural? is'a transv'rsefsspt ional"i iswf6n th'e'ilin'e 3+3 of Figure 2;

} Figui'e is agVieW in sectio of Figure A]; a p .i

'; I Figure}? is a View in section on s lin. 7'7

- Figure Sisaviewi i ss etion. OIL

f-Figu e I 5 Which shali'be opefiablegfictuallfj t' o cai troi the irar smission (2f; powe vfrdm a; drivi g t9 j "adfive shaftandtgvfiqritrqlihe spsed bi 1 cap 3 a d of'the basing l and thessca p's a-ie'adapid said shziftsQsaid bfiisiiings b'eiiig Held by cover plates 8. Ball bearing his i. F Q i Qi' r'ansiv sisi t ii i View 6 thel neQT QQf F1gurs2; is

Figure: 21 View in scfbibii bnii-heiliiie me ii i mi i i 1" V Figure 12 shows details jbfavpo'i fiibniqfiihe E1g 1 rss 13 and 15, rvvlews f k for: uniting th t i i V v v I Y .1 v .1; L ii 1 Figure 16 IS a sectional V ew ofihe roopi 26 .i Y F ure is a s c is l wb fih is tbtZ Figure 181s a, View insectloii on thsline V 18415) of Figure lfi ziiid M i A main or butelrcasiiig'is indic tcl it rand 7, s I

is piidviclsdjwiihii cover plats 2 so t iizittlie mechanism within said casing, will b Jcdlii:

pletely enclosed excpt for H s projvct ing Q0} 1 I i i tio'ns of be driving and driven shafts'aiidi the, conti lv v s V a re securea to fe'sp'c'ti've" a ds for the passage fdriving and driivsiish fis 5, 6, respsctivelyiand carrybushiii'gis' 7 f i 10 for the respective shaftsfi, 6 251 6 supported by zmd scuied to the} casing l iiith iiithe same near iespecfiiv-geiids theie'di, and i 'i V V s 7 I citedizit l l for suppo rtingiphrts pf them sh 1v ga'nisiii, zs' hreinaftr more patticiiiifi yfdi- A Locatsd'wichin the Casing 1 iuf'stWdbyl'ii ders12fai1d 13,bneff0'i whichfis cce'nbrig'to ih diiViiigshaft 5 and 11s other of Whi hi's' ,eclcntribto a tubular shaft 14L Iiio field'ini th ball bearing divicsll The cyl-ino ers' j" ;12,13*are divided ach intot o'hamber 1 b a artition 17am between the twiigy j'pititigin 18 serving" asfi 'i'nsif and W 11s f" A disk 20 ma rigid with thgdfr iviiig s ii" T Figure 11 is a viewqf piftioiibifinjg iihlfi A 6 cdnstitiites i one end"Wall ,fer chamber {1'5 0f cylinder 12- and is securedto a flange.

1 '21 of the latter by means 0fb0lts 22; disk" 23 maderigid with the tubular shaft 14 0 011 stitutesawallfofthelchamber of cylinder frn'ean'sl of:;h0lt s""25. F H I Within thecyli'nders, rotors p26,v 27and 28 are tlocated' "and so positioned that they will the rotors as separate parts er? n nits' cc'ilpled tated. Thercent ralrotor feccupies the chainl 3wliile thef rbtbrs 27 and280c1cupythe ch 'imediat M05126 entersjthe'{chambers 1 of indi's "fbr fthe, accomihodatibn pfguides 31 jfcrpairs of slidinglpisitons 32 Each ofthe {rotors- 2728fis made with. guide-ways 32 6 i "(arr'angediata ny sliitablean'gle,preferably" a'tright; anglesitb-"the ii'ide ways 'offthe rater},

' 26)" 'f0r the accommqj ati'on bf guidessuch as v 1 shdwn'iat 31fFigure. 2{carrying pairspf pis i tons' 33am a is The pistonsof .each pairare rnaintains'engageinentwith the cylindei Walls, .2 an a thi y n e ar en ri e y me 1 7 ed with respect to the rotors, a sliding action IV Qffth {pistons will occnr relatively to the for" theijpistbnsi' and prevent tilting (if the 'prpjected'jpistbn, under unequal; press'nrerso'j f thattheremay begreater-'difierenee; V V

7 f is adaptedto. slide'on a'fiXed stud O T guide 72;; fwas'ipra'ctijfal' in prior arrangements' The tw een therbtor and cylinder diameters than 'guidesihaV son e ncv eni'ent with the QPis 1 tons s fthat there is a minimum frictional .resistancef'per nnit pf pressure on the pistcns With'njthe rotors; permitting free 7 virithdntjaztendency tQ bindl shaft-{section 36 mounted in 1 and lpas sing jproyidedfor -oip'erat iyely connecting said j transmittedto said: driven shaft sectien j a. y Y linlet ducts 40, 40, With-a 'cq nmenchamb er I A1 int the val've'casingBS and discharge ducts "p .lflaa f I I 3 and is secured to 'al 'fiange-fi -therecf by- I 'f'be concentrie with"the a-Xis f the shaft 5.; Therotor 26 i sllb atd betweenlthe rotors 27 a id '28j and the three rptorsare ecouple'dto-l getherlfby ea .o ey 2 I3 -By a g tpgether; machining ;'of the same is facili bers l65-l6cf theresp'eeti'vecylinders'IZand norfnally held to its; seat yi i Sprin illfbe'seenhy reference teFig 3 V is let passages 4L0 communicates with the? cyline "ders at ,One side o ijthe'rotors-and that the dis-1 charge ports comn'iunicate iivith said eyl'in- V "qbersl5ef the respejctii ecylind ers. Tlieint'er both; cylinders-12 and- 1 3 and isgicenstriicted with guide ways29%30fintherespective cyl-e 1t0f and 7 from the 'cylinders.; fl For: 'operatirig T's eparatedjbyaf 35 which maintains. ;1;cntward pressures;there0ni tecause the'r'ntq I I g 7 I and the en1argements66 arefbifnrcated, asat] *roter which provide side supporting ,means With'a sl0tted1head73$ApinWLis mounted *in one Of the sidewalls' cf the mainlca's'ing'l fi' hear the top thereof (suitable bearings 7 5 movement V I if'neri end portionofsa'id pin, aufoi kedarm Therotor "28 is made rlg d With a driven H I slet cf the head 73 and'a bl0ck78is mounted;

l through the ttlbillalfshaffl l4 and means: are

driven shaft section 36 with the driven shait'tzj 6Q I As :the' several rotors are connected t0'-. si"gethe'randjniaide rigidfwiththe driven shaft sejctibii36, 'all tcrqiie ofjthepistons Will be.

i I described; to the sleeV'eiQGlj and arms 62%63 vlever 79 is'sevured. It isapparentthat when Hbllbw distributinggval ves 37" are provided for operating. the valves; 1* 7 V V v The cylinders-12a d 1' I BQfWIiichmayh extensionsiofthe b olts which V V vices hereinbefore described; areencl'esed by 15 and"16fef each, cylinder are rcqnnectedby 7 bolted to said disk near the periphery 1th-ere V 13;)" 1i (Fi 4 "cominunicateflwith ,,commfif chamber H the val ve37 being located be tween said chambers 41- and 43 andfcontrol lingthe ports 44 and 4:5 thereof.".Eachf valve j casing--38 is provided With an inlet-passage": 4L6,the port47 of which iscontrolledhy the Valve 375, and saidlca'sing is'al s0 'provided' With a discharge passage 4 c8 theport 49 0f i which is controlled bysaidvalye 37. 'An op'en inlet nipple 50 (Fig; 8) }comInunicatesF-yvith :;i each inlet, passage 46 and this nipple fand. hence the passage .46 is provided with an in-,

wardly-iopeningcheck:valYe1f51. The enter" a e port 52 of eachdischargefpa'ssageji is closed 2. byan outwardly-openingvalye 53flfFig 7)I 5 thaitthe "valve, 37*is provided with ports '55j andzfl56r 1 and'is adaptedtc controlthepassage'ef flui d; 6;? Valves deyic e s l no b d s 37 "are provided with bifu rcated arms 157 which receive rellers 58carriedfby rcds59 '60." Aisleeve 61"0'11the tubularffishaft 1435i provided With ar1ns1 62",{ 63*having Iictches I 164Lforthefaccommodation pf gu d is mesjpr- V rodsfl65,'afnd the rods 59, 60 arelprqvidediwith V *enlargements66, 67 which' con'stitnltemeans i for coupling" said 1 rods to T the -arin's ESQ 63'; i

68,410 engagethe guidegrods'orfstuds j 65. The V 3 1 a sleeve 61 is provided withspaced-annular; flanges 69 formin'gan' annular grbeve-receiw ing ia shiftingifork 71, the arm" of which 13 and the trnnbfSai'd shifting fork is provided being provided for saidpin) fand to the iin- 76 isfsecured. J A Pin'Y'Z' extends across the the handyleverf 79 is f'op'erated finotien will 7 V -s be imp arted, through the; connections abciire and by. said armSlthrdughthe rc'ds 59; 6O to theslotted arms 57 on theretary valves- 6? V v a d th fiaiiisnii associ-atedTthereWit-h, inclilding'the valvewdeaninner'caSingBO, oneend of'swhich isse- 1; cured to the disk 20' icy-means of airing 81 of. Thelother end of the inner casing-T80, ezi- 7 tends" inwardly as, at 82 andiis; formed with a [central opening 83 surrounded by a "flange '84. ,Weldedor otherwise secured to, the end "portion 82 ,oftheinner casing, are -hollow vanes 85, which are sofformed and propon. tionedthat they will dipoil from-thelbottomportion-of; the'main "or outer casing i1, and

convey such 'oilinto thegyinner casing, ,dur

ing the rotation. of theflatterand the mecha- Jiism containedpthereina Holes 86 are pro .Yidedinthedisk 23 andfiange 24:,"to form circulating passages for-oil Withinthe casing 80, and holes 87 (FigQ2) are provided in; the disk '20 and flange 21;. to form outlets s for oil from thejchambe'r: within the casing 80.

J, In order to, d'issipatexthegheati nnijts rwwhich inay develop, inthe .workingniec'hanisrn, the

I maincasing is providedjwith sribs88; v, PQltiQn ofthe shaft 36, is made angular and jcarries' the bevel -gear-89j -The driven shaft section 6 is-also mad angular in cross.

' se'cti'onand carriesa bevel gear 90, said shaft 1he;mode of operation "of improved 7 v (hydraulic transmission" mechanism will now "beexpla'inedp v Liquid,-'preferahly passed into the "outside casingl-to the upperfoil level indicated atg etheoil level whenthemechanism is i operation, being indicated 1. Power is applied to the drivin'glshaft =5 and the'unit comprising the inner casing and the fnecha- ,=nis1n contained thereinand the'vanes 85, is caused to revolve; thisunlt rotates in the i directionvof thesarrow-(Fig. v 3-), the hollow,

' vanes'i85 will. pick ups the oil frornthe main or outer casing '1 and-deliver the same inside the inner,- casing 80. The centrifugal action {due t the revolving o' fthe casing 80 will hold this oilinsuspension andcauseit to cover the insidev of sai'dlcasing' with a1 uniform thick- "ness'of -oill The j amount of oil held. in the y main :or outer casing 1 is graduated so that it, does not exceed thejc'apacityof the casing '80when-oi-1 wouldrun out atthe central openling 83 while the uniit is'revolving. It will be understood-that tlieoutside of the cylinders 12,-13 and-"the attached valve' devices are 'alwaysrandin allpositionssubmerged in oil iandsubjectfto certain ainount's of pressure due to centrifugal force, thus prevent ng the.- ca v i The valves 37 jwill be gradually; moved by mixing of air and, formation .of air pockets.

' .Jnanipulation of the lever. 79 toaposition approximately such, as-fsh'ownin Fig. when oil, entering past theinletvalves 5.1, will pass through the, hollow valves, 37 andfiow to the driven shaft.

chanibers -ofthe cylinders 1 2, 13. The driven shaft 36 with theattachedrotors and pistons will offer resistance and gradually come into motion, revolving in the same direction as thatofthe driving shaft 5.11 When the chain bers of the cylinders become filledwith oil, the check valves 51 will, prevent back flowof oil. During the rotation of the Cylinders, 1

a transfer of oil from the suction side tot-he discharge side of the pistons will occur and power is transmitted from ,theidrivingto the 7 The relative speed between thedriving and drivensh'afts is regulated and controlled by" resistance ofiere'd to} the flow of oil through the discharge port's; andsuch resistance is governed by the; positions ofthe 'valves 37 ;When a valve 37 is 'posie I tionedyas indicated in Fig. 4, said valvelwi'll beyclosed against dischargeportsandyhydraulic" lock' will occiir, so that the" driving and driven shafts will run at the sainespeed.

.VVhen-it is desired to keep the driving shaft running andc-the driven shaft at rest, this may be accomplished by setting the valves 37 7' in the position indicated in Fig. 6, when com- 21 13 inunication will be established between the v discharge ports and outlet valve 52. ;All

other ports are'closed and oil will be quickly exhausted from the cylinder chambers, 7 thus eliminating all hydraulic resistance.

" As previously explained, each cylinder- 7 (12 13) has two chambers with pistons set at. an angle. with respect to each other, and" a the suction and discharge ports are combined and, cross-connectedby means of valves 37 -1'00 This cross'connection is employed in orderto is not impaired in the transmission of motion and loss of power islobviated. :Each 'piston iwill discharge part of its displacement under pressure to, the suction side of its own cylin ndex or adjacent cylinder depending upon the? position of the pistons in relation to, the port openings. Upon'reterence to Figs. 1 to 6,, it

will be understoo'd' that one inletv port 40 opens into a chamber 15- while the, companobtain a relatively uniform displacement vol- I nine or'connected' cylinders so thatlefficiency ionport 4iOfopenslintothe adjacentgcha nber l6 and a transverse" passageconnectslthern' with common central chamber 41 in the" "valve casing 38.- 'Like'wise,v the companion outlet ports lead from companion chambers 15 16, througha transversepassageto acomnion central chamber 43, and the valve 37 controls'the flow between the suctiont'andgdis charge ports. When thevalve37 is set as in Fig. 4, its ports establish direct communithe chamber alto the ports ,40 so thatfthe cylinderswill be rapidly filledythechamber 48 andthe-pa'ssa'ge 48 being closed; When set as in Fig; ,5: there willbe' a Sl OW'lfillingQf j i the cylinders as-the inain inlet port is partly? open and there is communication between cation between thernain suction port ii6 and v thefoutlet cha1nber1y43 an'dthe inlet chamb r -139- V J ll whilel the. 48jis dosed." disposed at an angletothe big fongio fth When set as in Fig. 6, al1 theiinletfprts are" Closed. and the chamber 43 is in direct coin- Z u munication with the disohargeport' Sfso that there cylinders;1 11 V I Theinultipleoylinder arrangement isypro- Vided: so as to obtain a :nniform torque w thout undue pressure on any piston; When =the driving shafts stops,' part of 'theoil held injsuspension-within the oasingirtQfwillrun .over the lower 'ed' ge of'theopeningfifi andainto r -th'eiouter forfmlai n casijng' l land' when starfi' ingagain,'theho11ow Yanes85 w111 p1ck np the oiI'from the'ohamber ofthe outer or main i oas-ingland deliverittothechamber for ned the inner casing 80,; as previously eg oiit departing :f-rona the spiritl'thereof iimmyself to the precise details er n set font-h.- I Havin'g fnlly deso ibed ny invention what Iv Claim as new and desire V to secure byiLet- 'ter's Patent,;i s:ig- I 1Q. In "hyd" anlio transmiss on inecl ianisin,

ltheoornbination wwithfdriving and dr ven V and disoharge ports for. the, oylin deg"cha ns "bets, anda controlling valve'between the 1nshafts5 ofja cylinder ec centrieto and rotatable fWith the dri ving shaft, said'cyhnder" having two, chambers, ,a rotor in each, ehan ber, con: 7

entfiowiththe axis of the said; rotors being rotatable w th the driven 'shaft,pistonscarried byfthe respective'rotors the. pistons of one 'rotorfbeing disposed at an angleto-"the pistons ofthe other roton'inlet let-and discharge ports whereby to transfer fiuidifroni one side of'the pistonsto the other side thereofand,controltherate of transfer. V 2.-In hydraulic transmiss on mechan sm,

the combination; with "driving and driven shafts, of a cylinder eccentric to'and rotatable with the. driving shaft, said-cylinder lmVlng two chambers, a rotor -in eaehiohainber, icon "centric" with "the" axis 0f the driving shaft, "said'flfoto rsi being' rotatable with thefdrlven, shaft, pistons carried byi therespec-tn re' ro-' tor's, thepistonsofione rotor be ng disposed V atjananglejothepistonsjof the other rotor,

' inletand disoharge ports it]: ---the v qdinlder Chambers; 7 a transverse "passage Connect ng the inlet ports; aztransver e passageeonneet 5 Zing thefdischargelports, and aicontroljvalve between and h aving f C(immu'nic ation with the transverse passages; i

V In h drauhotransrhi'ssion ineeha nisin;

' the combination: wlth; drlVlng and "dr veni. V 7' V. i 7. TN

' V 1 its 'of'a lurallt ofclinders arranged V e s m it V p y y said arm and itshead, a bifurcatedarm m i eecentri'cally to and rotatable with said" driving 7 shaft, ro'tofsj said cylinders and: con

oentrioito the 'drivingl shaft' and rotatable each cylinder having two chambers, rotors;

; said cylinderch'ambers iand e'ffectfingtraiisf "of the liquid'fronione side of the piston 't' v 7 V e V e e V e ythe-othepside thereof f n t' 'u tiofifqf yii yntionfiiwitlv 5.3111 hydrauliejtransmissionlme'ehanism, r eand henceI."dotnotl estrict V V e I (rigidly vconnected together, one of said cyl a tubular" shaft 'ri gijdfwi th the "other cyiing, V V der and enol osingthe vdliveflfshaft 61 a 'ried e-a ch 'cylindei for oontrollinglthe'pasof said valve mechanisms; inclnding a'een shaft, rods conne'ctecliwith said arms', oper a -t1ve connect ons between" SiLld rods and the, icontrol' va'lvesofsaid Valve mechanisms; a hand leveryandl connections between' is'aid hand 'leverand sa d arms. j

.Leaoh cylinderfor controlling the passage of fiu d toand vfrom saidoyllnders, each of 'said VLiV8 mechanlslhs JIIQIHQIHQ 3; Control Valve,

"arms; said connections 1'in'c1ndijng shifting fable with the h and le'ver and Connections- 'With the drii'ren shaft; pistonsgcarri'e d: by" the gthepisto of one rotor be vother rotor, a 'valve'mechanisin foreaoh' y1"-;-. I inder'to controlth'e passage'of' fluidto and 5 from the sames and manuailyfcontrolled op if will bearapid emptying of the l fmon to the valve'meohanisms. r i r In hydraulictransmission -mec hani sm,

the combination 7 With drivin'g fand j driveiis Shafts; ra y of de r t t b e 2 with the driving shaft and eccentric'xthereto the chambers of said cylinders and oo'neen ti to the axis of the drivingshaft'ahdiotat 1115 Iwiththe driven shaft, pistons oarriediby g ch rotor; and manually 'controllablesmeans 011 j I controlling the passage-of liquid 'togand from the combination with drii ing and driY'en "shafts; of eooentrieally disposed cylinders:

i nders being rigid with 't'he: driving f shaft said eylinde'rsfand concentric to the gax f,

} thefdriving' and drivenshafts and-"hav ng f 'Tllgld QOllliGCtlOIIWlth-th? l-atter pistons oar- Tied "by is'aidf rotors, a valve jmecha'nismmarg sage'of fluid to and from's'aid oyli'nders zeach 'trol Valize, 'arms moiiable on "said tubi laf 6. 'ln'hydraulio transmission mechanism; thekcombination with'driving-and driven shafts, of, 'ecoentrioa11y' disposed lieyli-nders 1 rigidly connectedtogether, one of said" c'yl' Said rotors, a valve' mechanismf cai'rijed' arms movable on sai'djtubnlar sh'aft, rods com "neetedwith" saidiarmsfoperative eonneqtions 5 between said rods and the; control i'ralvesgof vsaid valvej -ineohanismsfe hand vlet e1", and? conneotionsbetweensaid hand lever 'and'said arm having a bifurcated head, a guide' jfor J oated headoh'the -Shift arm.- 7, I111 hydraulie transmission {mechanism 7 tween said bifurcated; ar n and rotor-,I'an, inner casing, valve mechanism'for a 1:;Sald cylinder and ,commumcatlnglwlth the the combination with a main casing and driving and driven shafts mounted therein, of a cylinder rotatable with the drivingfshaft and eccentric to the axis thereof, a' rotor-in said cylinder and concentric with theaxis of said shaft, said rotor having rigid connection with the driven shaft, pistonscarried by said chamber of said inner, casing and with said cylinder, said valve mechanism including-a manually operable control-valve, said inner casing enclosing said cylinder and valve mechanism and rotatable with the same, and

means operable to convey Operatingfluid- I from'the chamber of the outer casing into the chamber'of the inner casing during the ro- -tationkof the latter and the mechanism therein.

- 8 In hydraulic transmission mechanism, the combination with a'main casing and driv ing'and driven shafts mounted therein, of fa cylinder rotatable'with thedriving shaft and eccentric to the axis thereof, arotor insaid cylinder and concentric with the'axis of said shaft, said: rotor having rigid connection with the driven shaft,,pistons car'ri'edby said rotor, an inner casing,fvalve mechanism for said cylinder and communicating with the chamberof said inner casing'fand with said' I cylinder, said valve mechanism including a manually operablecontrol valve, said inner casing enclosing said cylinder and-valve mechanism and rotatable withithe same, and

: means, operable tojconvey operating fluid fromthe chamber 'ofthe outer casinginto the chamber of the inner casing duringfthe rotati'on of the latter and the mechanismtherein, saidmeanscomprisinga hollow vane carried, bythe inner casing and adapted to {dip I fluid from the chamber of the outer, casing.

9. In hydraulic transmission mechanism, the co'mbinatlonwith a malncaslng and drlving and driven shafts mounted therein, of a cylinder rotatable with the driving shaft and eccentric to the axis thereofya rotor in said cylinder and concentric withthe axis of said shaft,said rotorhaving r gid connection with the driven shaft, piston s cairriedby said ro- V I tor, an inner caslng, valve mechanism for sa1d specification,

.inder'rotatable with the driving shaft and 1 eccentric to the axis thereof, a rotor in said, x

cylinder and concentric with the axis of, the

driving shaft and rotatable withthe driven" shaft,pistonscarried by said rotor, a casing" enclosing said cylinder and rotatable therewith, means for discharging workingfluid; into saidcas ng, and valve controlled means for conveying working fluid from the inte .rior'of said casing to 'said cylinder and from, the same, the arrangement being such that, x the working fluidwillbe held in suspension within the chamber of' saidicasing byxcen trifngal action and caused by such action to v dellver pressure and tosurround the valves and. worklng parts;

7 11, In hydraulic transmlssion means, the I combination with a drivingshaftand adriveccentric with respect to the axis of the other and the rotor member being rotatable with the driven shaft, a guide member movable through said-rotor, pistons mounted in said guide member, means pressing said pistons in opposite directions, and means for control en shaft,of a cylinder member rotatable with thedrivingshaft, a rotor member'in the cylf inder, the axis of oneof said members beingling the passage of operating fluid to and from said-cylinder and effecting transfer of the fluid from one side of the pistons to the other side thereof.

I 12. In hydraulic transmission mechanism,

the combination with" driving and drivenshafts, .of a plurality of connected cylinders rotatable" with the driving shaft and eccentric" to theaxis thereof, a plurality of rotors in said cylinders,- keys 'connectingsaidrotors ,saidconnected rotors being rotatable:

with the driven shaft, pistons carried by saidj i" rotors, and valve mechanisms on the respec-{ tive "cylinders at opposite sidesof the same a for 'controlling the passage of fluid toand" c i from said cylinders and efiecting transfer of y 1 fluid from one side of the pistonsto the other side thereof.

In testimony whereof, I

' "CHAR ES I NORR NQ.

cylinder and communicating with the chain-u c ber of said'inner'casing and with said cylinder, said valvemechanism including a1man-- c vually operable control valve, said inner c'asing enclosing said cylinder andvalvemechanisin and rotatable with the same, and means 1 operable to convey. operating fluid from the chamber of the outer casing into the chamber of theinner casing during the rotation of the latter and the mechanism therein, an end wall c a a have signedthis' 

